DESIGNING A LABORATORY STAND FOR TESTING IMPACT RESISTANCE OF PLASTIC FILMS BY FREE-FALLING DART DROP ACCORDING ASTM D1709. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, [S. l.], v. 3, p. 268–273, 2024. DOI: 10.17770/etr2024vol3.8139. Disponível em: https://archive-journals.rtu.lv/etr/article/view/4846.. Acesso em: 11 mar. 2026.